FIGURE 5-7 Achievement (percentage correct) on Second International Mathematics Study (SIMS) items by U.S. precalculus students and functions, statistics, and trigonometry (FST) students.

SOURCE: Re-created from Senk (1991, p. 18).

TABLE 5-3 Number of Studies Using a Variety of Outcome Measures by Program Type

Total Test

Content Strands

Test Match to Program

Multiple Test

Yes

No

Yes

No

Yes

No

Yes

No

NSF

43

3

28

18

26

20

21

25

Commercial

8

1

4

5

2

7

2

7

UCSMP

7

1

7

1

7

1

7

1

A Choice of Statistical Tests, Including Statistical Significance and Effect Size

In our first review of the studies, we coded what methods of statistical evaluation were used by different evaluators. Most common were t-tests; less frequently one found Analysis of Variance (ANOVA), Analysis of Co-